#include <stdio.h>
#include <string.h>

int main()
{
	char arr1[] = "abc";
	char arr2[] = { 'a', 'b','c' };
	char* arr3 = "abcdef";//?
	printf("%d\n", strlen(arr1));
	printf("%d\n", strlen(arr2));
	printf("%d\n", strlen(arr3));

	printf("%d\n", sizeof(arr1));
	printf("%d\n", sizeof(arr2));
	printf("%d\n", sizeof(arr3));

	return 0;
}
